Application modernization service

Your tech needs an upgrade? Let our engineers handle it

A senior squad, led by a partner-level solution architect, takes the modernization track in phases, while developers keep shipping. Same repo, same standups. No release freeze
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Multi-tenant SaaS
Legacy modernization
Performance optimization
PlaceMaker, urban planning SaaS
Revamped a single-tenant codebase into a scalable multi-tenant SaaS → 20× faster customer onboarding
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Cloud-native rebuild
Real-time data sync
Large-scale data processing
UI/UX transformation
Cloud drone platform
Drone platform went from local USB drives to web, mobile, and desktop on one codebase, built with Radency team
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Security & compliance
Platform integrations
MVP to production
Trading platform modernization
What started as one feature is now a white-label SaaS and a new revenue line built by a senior-only dedicated Radency team
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1–2 weeks
Technical audit and modernization roadmap
60–90 days
Architecture refactor or system migration
30% cost savings
With AI-accelerated engineering

What we've helped rebuild and scale – our latest modernization projects

What we've helped rebuild and scale – our latest modernization projects

Multi-Tenant Platform for UK Boroughs
Cloud migration for drone platform
White-label capital-raising SaaS
All cases
Need a complex integration?
We'll have a working PoC in 5 days.
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Council planning software
Urban Planning

Multi-tenant platform powering 25+ UK councils

A British proptech founder was onboarding new councils by cloning the codebase, weeks of engineer time per client. It worked for three or four, not twenty.


Radency certified engineers led by a Solution Architect replaced the cloned-codebase setup with a unified multi-tenant platform.


Four years on, 25+ councils run on it, onboarding dropped from 40 hours to 2. In the founder's words: "Radency has taken away a key area of stress in my life."

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Drone fleet management
Geospatial

Cloud-native drone platform 
with 3 cm geospatial precision

A Swiss drone maker captured terabytes of flight data, but it lived on local machines and USB drives. A year of in-house cloud work had stalled.

Radency certified engineers led by a partner-level Solution Architect joined to rebuild the platform cloud-native.

Now the platform runs across web, mobile, and desktop on a single codebase, releases shipped 2× faster, and software revenue grew 50%.

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Securities issuance & trading
FinTech

White-label capital-raising SaaS for trading platforms

A US fintech wanted to add capital-raising to its trading platform before competitors caught up. The internal team was at capacity, the work needed senior engineers from week one.



Radency engineers led by a Solution Architect built the module: KYB verification, secure transactions, and an open API.


The module was later packaged as a white-label SaaS, now running under multiple brands as a separate revenue line.

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Your product’s evolving.

Your stack isn’t

Your team is overloaded, your tech stack has seen better days, and every sprint 
feels twice as long as planned. Here’s how we can help
Shipping slower every sprint

Velocity back in 6 weeks. A senior squad gets into the codebase in week one and clears the modules choking delivery, ranked by impact on shipping speed.

Maintenance is eating your best engineers

Refactoring, off your team's plate. A senior squad led by a solution architect takes the refactoring track. Same repo, same standups. Your seniors get back to product.

Architecture is hitting its ceiling

Scale without freezing the roadmap. Critical modules re-architected first — the ones blocking integrations, enterprise deals, and compliance. Live releases keep going.

Application modernization scenarios we handle

Radency embedded engineers help you upgrade without downtime. Here are the most common use cases we deal with
Monolith that breaks when touched
Every feature ships through one pipeline
Modular services, deployed independently
Refactored gradually - production never pauses
Teams ship features in parallel. No more merge-conflict standoffs or Friday rollback anxiety.
Desktop-only or on-prem
Manual installs, regional limits, no mobile
Cloud-native across web, mobile, desktop
One codebase. AWS, Docker, IaC baked in.
Quarterly releases become weekly. New subscription tiers open because the product can finally reach the customers who'd pay for them.
Single-tenant codebase cloned per customer
40+ engineer hours per new account
Multi-tenant SaaS with tenant isolation
Automated CI/CD, blue-green deploys, feature flags
20×faster customer onboarding. 99% uptime through the migration itself.
Brittle, undocumented APIs
Every partner integration is a custom build
Versioned APIs with webhooks and events
OpenAPI specs, SDKs, and sandbox environments
New partner integrations ship in days instead of quarters. Sales stops getting blocked by "can it talk to our stack?"
Manual, risky releases
Deploys happen at night. Someone's always on call.
Automated CI/CD with rollback safety
Blue-green, canary, observability, alerting
Deploys become boring. Releases move from "event" to "routine." The on-call rotation stops being a punishment.

Different challenge? Tell us what's slowing you down.

If your challenge isn't listed here, tell us what’s slowing you down, and we’ll help you plan the upgrade.
Book a call

Bring our engineering expertise into your team

Radency embedded engineers help you upgrade without downtime. Here are the most common use cases we deal with.
Architecture modernization & refactoring
Gradual modularization
Break monoliths into clear modules step by step while keeping releases flowing and production stable.
Refactor what hurts first
We target the most fragile or overloaded parts of the system to deliver visible stability and performance improvements early.
Safe framework upgrades
Outdated frameworks and dependencies are upgraded with safeguards and regression checks to prevent unexpected breakage.
Database performance tuning
Indexes, queries, and schema structures are optimized using real usage patterns to eliminate bottlenecks.
Architecture that scales
The end result is a cleaner system structure that engineers can extend confidently without accumulating more technical debt.
Cloud migration & infrastructure setup
Containerized environments
We package your application into reproducible containers so it runs consistently across development, staging, and production.
Infrastructure as code
Cloud infrastructure is defined and versioned in code, making environments reproducible, auditable, and easy to scale across regions.
Safe production rollouts
Blue-green and canary deployments allow new versions to be tested with real traffic while protecting the stability of your live system.
CI/CD from commit to production
Automated pipelines run tests, build artifacts, and deploy changes so releases become routine instead of stressful.
Monitoring and recovery built in
Observability, alerts, and rollback mechanisms ensure issues are detected early and resolved before customers feel them.
DevOps & performance optimization
Reliable CI/CD pipelines
We build deployment pipelines with rollback safety so releases become routine instead of risky late-night events
Automated testing and safe releases
Every change goes through automated testing and controlled rollouts, reducing broken builds and production surprises.
Full system observability
Metrics, tracing, and alerts show what is happening inside the system so issues are detected before customers notice them.
Built to handle growth
Caching, queues, and autoscaling infrastructure keep the product responsive during traffic spikes while avoiding unnecessary cloud costs.
Security & compliance
Modern identity and access control
We implement secure authentication and authorization using SSO, OAuth2, and role-based access so the right people access the right data.
Proactive vulnerability management
Automated dependency scanning and patching reduce the risk of outdated libraries or hidden security flaws entering production.
Compliance-ready systems
Architecture and processes are aligned with frameworks like GDPR, SOC 2, and ISO 27001 so you are prepared when enterprise customers ask the hard questions.
Security embedded in delivery
Security checks become part of development and deployment workflows, preventing risky changes from reaching production.

Modernization that pays for itself

Lower infrastructure costs, fewer incidents, and a codebase 
your next hire can actually read.
Book a call

Phased delivery
model

Modernization in parallel with live product releases

Clean codebase
guaranteed

Refactored, documented, and lint-checked

Cloud-native
foundations

Powered by our AI workflow

Lower total cost
of ownership

Fewer outages, smaller footprint, easier hiring

We make sure modernization doesn’t interrupt your delivery

You don’t need to freeze releases to fix what’s under the hood. We modernize in short, controlled phases. You keep shipping while your system gets rebuilt

1-2 weeks to get audit and modernization roadmap
90+ days to first modules live on a modern stack

Discovery
Technical discovery
  • Audit your codebase, integrations, and delivery setup

Outcome: A map of what's working, what's slowing you down, and what needs fixing first

Stabilize
Stabilize the foundation
  • Fix what blocks velocity: outdated libraries, broken CI/CD, slow builds, or fragile dependencies

Outcome: A stable base that supports ongoing releases without disruption

Re-architect
Re-architect for scale
  • Refactor core modules, move to cloud-native or multi-tenant architecture
  • Build proper test coverage

Outcome: Your software scales without manual patching

Optimize
Optimize and hand over
  • Monitor production, tune performance
  • Hand over documentation and training

Outcome: Modern, documented codebase your team can evolve safely

Let's talk

Our tech stack

Our engineers are full-stack and certified through Radency’s engineering program. Everyone joining your project has already built and shipped production-level systems. Here’s the stack we rely on:
01
Backend & APIs

Reliable backend systems and APIs built to scale and integrate with complex products

02
Frontend

Fast, modern user interfaces built with frameworks that scale with your product

03
Infrastructure & DevOps

Cloud infrastructure and automated pipelines that keep deployments stable and predictable

04
Databases & Search

High-performance data systems designed for fast queries and growing datasets.

Engagement options

Two ways to start, depending on where you are.

Technical audit & 
modernization roadmap

Perfect for:
Teams that need a clear picture of what’s breaking, what to fix first, and how
to modernize without halting delivery.
What's included?
  • 1–2-week discovery and codebase audit
  • Delivery and integration review
  • 1–2-week discovery and codebase audit
  • Cost and timeline estimate
Get cost estimate

Embedded modernization

team

Perfect for:
Teams that need to re-architect while still shipping when they don’t have
enough in-house resources.
What's included?
  • Tech audit and modernization roadmap
  • 1–3 backend or full-stack engineers + delivery partner
  • Gradual modernization without downtime
  • Performance monitoring and handover
Get cost estimate

What our clients say

We take pride in delivering exceptional solutions that deliver great results.
But don’t just take our word for it.
«Radency has taken a fragmented codebase and created a unified, multi-tenant solution. They have helped us remove significant technical debt.»
Paul Nebel
CTO @ Urban Intelligence
«Their technical expertise, combined with their commitment to delivering high-quality solutions, set them apart.»
Adonia La Camera
CEO, ProStock Tracker

End "we'll fix it later" cycle

Book a free consultation to see how our certified engineers can be embedded into your product development process.
Eduard Dolynskyi
Partner & Solution Architect

Our Solution Architect will audit your stack and map the risk, cost, and speed of modernization

Review what’s slowing your roadmap
Identify modernization opportunities
Assess scalability and security risks
Outline a realistic modernization path
Book a call